Metro

Electrical short circuit sparks three-alarm fire in East Boston

Boston firefighters rescued a cat on the third floor of a three-alarm fire on Meridian Street in East Boston on Sunday.
Boston Fire Department
Boston firefighters rescued a cat on the third floor of a three-alarm fire on Meridian Street in East Boston on Sunday.

An electrical short circuit sparked a three-alarm fire in East Boston on Sunday that left 20 people displaced, fire officials said.

Boston firefighter Marc Sanders said investigators tracked the short circuit to a third-floor living room ceiling in the building at 360 Meridian St.

The blaze broke out at 12:40 p.m. Sunday and took several hours to extinguish as flames raged between a drop ceiling and the actual ceiling, and firefighters had to deal with a frozen fire hydrant, officials said.

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No injuries were reported. Sanders said a cat was rescued from the third floor, surviving the heavy flames and smoke.

Damage was estimated at $500,000.

Mike Bello of the Globe staff contributed to this story.